rear view lines

Hello, I want to know if they know some examples to make them look back line of an icosahedron that has the texture (could be any other figure, could be a hub for example). I only see the front lines when I put texture.
Linck an attached a picture to understand better what I do

http://img513.imageshack.us/img513/5863/dibujokk.png

draw first the opaque textured version, then disable depth test and back face culling, then draw wireframe.